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2000-2006 Nissan Sentra Fuel Pump Replacement, Code P0171 System Lean

Fuel Pump Replacement on 2004 Nissan Sentra. It took me awhile to figure out that the fuel pump was going bad. CEL-Check engine light code P0171 fuel system lean bank 1. You will least suspect the fuel pump, but I went through 3 pump. sometimes the car would randomly cut off while driving or stutter. The pressure should be approximately 53 PSI, however there is a pressure loss causing the code. I have disassemble the pump and found an oring that was pinched. there was a TSB issued, however it was never a recall.